BRAND NEW US AMPS XT V2 SERIES XT1600.4 V2 800 WATT RMS (1600 WATT DYNAMIC) POWER 4 CHANNEL (BRIDGEABLE TO 3 OR 2 CHANNELS) COMPACT CAR AMPLIFIER WITH BUILT IN ADJUSTABLE 24 Db / OCTAVE BUTTERWORTH CROSSOVER NETWORK, AND TOP OF THE LINE SOUND QUALITY Features: XT1600.4 V2 800 watt RMS (1600w peak) 2 channel bridgeable car amplifier 1600 watts peak output 100w x 4 RMS @ 4 Ohms 400w x 2 RMS @ 4 ohms Bridgeable Efficiency: 71 % @ 4 Ohms or 70 % @ 2 Ohms Fully adjustable butterworth high and low pass crossover filters High pass filter - adjustable 40 HZ - 1 KHZ @ 12 dB per octave Low Pass Crossover Filter - Adjustable 40 - 250 HZ @ 24 dB per octave Adjustable Bass Equalizer: 30 dB Bass Boost @ 45 HZ Subsonic Filter: 15-40 HZ @ 24 dB per octave Low level Input RCA Pre-amp output Block Power Connector Requires true 4 gauge power wire for installation Screw terminal barrier strip speaker connectors 8 - 18 AWG speaker connector gauge Aluminum heatsink Convention cooling power and protection LED Indicators Class A/B Frequency Response: 5 HZ - 50 KHZ Weight: 12 pounds Dimensions: 1.875" x 10" x 16"